| Numerical Results of the Field Experiments 1970 | 3 |
| Numerical Results of the Field Experiments 1970 | 3 |
| Contents | 4 |
| Conventions 1970 | 7 |
| 70/R/BK/1 Broadbalk - Winter Wheat, Potatoes, Spring Beans | 9 |
| 70/R/HB/2 Hoosfield - Barley, Spring Beans, Potatoes | 14 |
| 70/R/WF/3 Wheat and Fallow - Wheat | 20 |
| 70/R/EX/4 Exhaustion Land | 21 |
| 70/R/PG/5 Park Grass - Hay | 22 |
| 70/R/AG/6 Agdell - Grass and Fallow, Sugar Beet and Barley | 24 |
| 70/R/BN/7 Barnfield - Beans, Spring Wheat, Barley | 35 |
| 70/R/GC/8 Garden Clover | 41 |
| 70/S/RN/1 Rotation I 1970 | 43 |
| 70/S/RN/2 Rotation II 1970- Potatoes, Sugar Beet, Barley | 45 |
| 70/R/RN/1 & 70/R/RN/2 Ley/ARABLE | 51 |
| 70/W/RN/3 Ley/ARABLE | 69 |
| 70/W/RN/4 Market Garden - Sugar Beet, Barley | 78 |
| 70/R/RN/5 Arable Reference Plots - W. Wheat, Kale, Barley Grass-clover Ley, Potatoes, Grass | 82 |
| 70/W/RN/6 Arable Reference Plots - W. Oats, Sugar Beet, Barley, Grass-clover Ley, Potatoes, Grass | 86 |
| 70/R/RN/7 Residual Phosphate - Potatoes, Barley, Turnips | 90 |
| 70/R/RN/8 Cultivation/WEEDKILLER - Spring Beans, Winter Wheat, Potatoes, Barley | 94 |
| 70/R/RN/9 Cereal Disease Reference Plots - W. Wheat, S. Wheat, Oats, S. Beans | 101 |
| 70/R/RN/11 Irrigation - S. Beans, Barley | 103 |
| 70/W/RN/12 Organic Manuring - Leys, Beans | 106 |
| 70/W/RN/13 Intensive Cereals - Ley, Potatoes, Wheat, Barley | 109 |
| 70/W/RN/14 Long Term Phosphate - Sugar Beet, Barley | 119 |
| 70/W/RN/15 Rotation and Fumigation - Barley, Potatoes, Sugar Beet | 124 |
| 70/R/CS/1 Levels of N & K - S. Wheat | 129 |
| 70/R/CS/2 Grazed Reference Plots - Old Grass | 131 |
| 70/R/CS/6 Wheat After Intensive Barley -w. Wheat | 133 |
| 70/R/CS/10 and 70/W/CS/10 - Barley | 135 |
| 70/W/CS/11 Soil Structure 2 - S. Beans | 141 |
| 70/R/CS/13 N and Mg Levels to Old Grass | 143 |
| 70/R/CS/14 NPK to Old Grass | 147 |
| 70/W/CS/15 Direct Seeding - W. Wheat | 154 |
| 70/W/CS/16 Irrigation and Eelworms - Potatoes | 156 |
| 70/R/CS/23 Simulated Grazing - Old Grass | 162 |
| 70/R/CS/24 P, K and Take-all - Barley | 166 |
| 70/R/CS/25 Insecticides and Molluscicides - Old Grass | 171 |
| 70/W/CS/28 Fumigants and Irrigation - Barley | 173 |
| 70/W/CS/29 Forms of Magnesium - S. Wheat | 176 |
| 70/W/CS/33 Rates of Nematicides Dosage - Sugar Beet After Potatoes | 178 |
| 70/R/CS/41 Cultivations and Soil Invertebrates - Old and New Grass | 181 |
| 70/R/CS/42 Effect of Invertebrates on Yield - Old Grass | 183 |
| 70/R/CS/43 Aqua Ammonia - Grazed Grass | 185 |
| 70/R/CS/44 Break Crops and Wheat - W. Wheat | 189 |
| 70/W/CS/45 Nematicides in Rows - Barley | 191 |
| 70/R/CS/47 Thiourea - Ryegrass | 193 |
| 70/R&W/CS/49 Fumigant and N - W. Wheat, S. Wheat | 195 |
| 70/W/CS/51 Autumn and Spring Fumigants - Potatoes | 199 |
| 70/W/CS/55 Spring Beans | 201 |
| 70/W/CS/56 Nematodes and Verticillium - Potatoes | 203 |
| 70/R/CS/58 Crop Sequences and Take-all - S. Wheat, S. Beans, Fallow | 205 |
| 70/R/CS/59 Break Crops and Wheat - Barley, Oats, Beans, Maize, Clover, Undersown Trefoil | 207 |
| 70/W/CS/60 Glycoluril for Grass - Grass | 211 |
| 70/S/CS/1 Intensive Wheat- W. Wheat | 213 |
| 70/R/WW/1 and 70/W/WW/1 Winter Wheat Varieties X N | 215 |
| 70/R/WW/3 Winter Wheat Paths and Blank Rows | 219 |
| 70/R/WW/5 Winter Wheat Cultivations and Bulb Fly | 221 |
| 70/R/WW/6 Winter Wheat Ccc (Ccc) in Grain | 223 |
| 70/R/WW/7 Winter Wheat Seed Dressings and Soil-borne Diseases | 225 |
| 70/R/WW/8 Winter Wheat Gaines, Seed Rates, N and Ccc | 227 |
| 70/R/WW/9 Winter Wheat Growth Regulators | 229 |
| 70/R/WW/12 Winter Wheat Weedkiller and Aqueous Nitrogen | 231 |
| 70/R/WS/2 Spring Wheat Systemic Fungicides | 233 |
| 70/R/WS/3 Spring Wheat Ccc (Ccc) in Grain | 235 |
| 70/R/WS/4 Spring Wheat Effect of Gaps | 237 |
| 70/R/WS/5 Spring Wheat Varieties X N and Mildew Control (Erysiphe Graminis) | 239 |
| 70/R/WS/6 Spring Wheat Growth Regulators and N | 241 |
| 70/R/WS/7 Spring Wheat Dwarf Wheat, Seed Rates N and Ccc | 243 |
| 70/R/B/1 Barley Systemic Fungicides | 245 |
| 70/R/B/2 and 70/W/B/2 Barley Varieties X N and Mildew Control (Erysiphe Graminis) | 247 |
| 70/R/B/4 Barley Early and Late Mildew (Erysiphe Graminis) | 255 |
| 70/R/B/6 Barley Comparison of Combines | 257 |
| 70/R/B/8 Barley Weedkiller and Aqueous Nitrogen | 259 |
| 70/S/B/1 Barley Varieties, N Levels and Times of Application | 261 |
| 70/S/B/2 Barley N Rates to Barley After Grass | 264 |
| 70/R/BE/1 and 70/W/BE/1 Spring Beans Row Spacing, K, and Methods of Application | 266 |
| 70/R/BE/2 Spring Beans Effects of Aphids | 269 |
| 70/W/BE/2 Spring Beans Insecticide and Sitona | 271 |
| 70/R/BE/3 Spring Beans Pyrethroids | 272 |
| 70/R/BE/5 Spring Beans Photosynthetic Zones | 274 |
| 70/R/BE/6 Spring Beans Seed Rates, Row Spacing and Growth Regulators | 276 |
| 70/R/BE/7 Spring Beans Chemical Control of Soil-borne Pathogens | 278 |
| 70/R/BE/8 Spring Beans Broad bean Mottle Virus | 280 |
| 70/R/BE/9 Spring Beans Thizobium Strains and Lime | 282 |
| 70/S/BE/1 Spring Beans Insecticide and Sitona | 285 |
| 70/R/P/1 Potatoes Seed Stocks, Diseases and Fungicide | 286 |
| 70/R/P/2 Potatoes Chemicals and Seed-borne Fungi | 293 |
| 70/W/P/2 Potatoes Nematodes and Verticillium | 295 |
| 70/W/P/3 Potatoes Much Fertiliser and Fym | 297 |
| 70/R/P/5 Potatoes Chitting, Spacing and Seed Size | 299 |
| 70/W/P/5 Potatoes Chemicals and Scab | 302 |
| 70/W/P/6 Potatoes Systemic Nematicide | 304 |
| 70/R/P/12 Potatoes Comparison of Fungicides | 308 |
| 70/R/P/13 Potatoes Blight Reference Plots | 310 |
| 70/R/G/1 Grass Anhydrous Ammonia, Aqueous Ammonia and Urea Solutions | 312 |
| 70/R/G/3 Grass Weedkiller and Aqueous N | 315 |
| 70/G/SC/1 Sweet Corn Nitrogen and Seed Rates | 320 |
| 70/R/M/4 and 70/W/M/4 Mixed Crops Ammonium Phosphates for Grass and Barley | 322 |
| 70/R/E/1 Meteorological Records 1970 - Rothamsted, Woburn, Saxmundham | 330 |
| Conversion Factors | 333 |
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